Karate Kid 1 - 3 (1984/1986/1989) are reportedly getting a 4K UHD Collection release on December 6 in Scandinavia. As the retailers linked to below have item number and release date on this, hopefully it is legit. They must have got the info somewhere.
https://skvis.no/film/4k-ultra-hd/ka...blu-ray-180890
https://www.platekompaniet.no/blu-ray/karate-kid-1-3/